P0909 Peugeot 307 OBD Code

OBD/2 P0909 error code description and symptoms.

HO2S Sensor Circuit Malfunction (HO2S-11) During testing the HO2S Heaters are checked for opens/shorts and excessive current draw.
The test fails when current draw exceeds a calibrated limit and/or an open or short is detected. Short to VPWR in harness or HO2S. Water in harness connector. Open VPWR circuit. Open GND circuit. Low battery voltage. Corrosion or poor mating terminals and wiring Damaged HO2S heater. Damaged PCM.

Circuit High Input codes like P0909 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

P0909 Peugeot 307 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P0909 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If p0909 gate select control error so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the p0909 gate select control error.

Common Causes of Peugeot 307 P0909 OBD2 Code

A common cause of code P0909 is the failure of P0909 Gate Select Control Error, but there are several other possible causes as well, such as ;

Exhaust tube
Continuous oil flow to the VCT piston chamber
Fuel pressure
Oil Control Valve (OCV) circuit is open or shorted

P0909 is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P0909 Peugeot 307 OBD Code

P0909 Peugeot 307 Error Code Repair Process :

Common Causes of Peugeot 307 P0909 OBD2 Code

P0909 code for other Peugeot cars